Process of staining woods.



No. 708,069. Patented Sept. 2-, I902.

J. PFISTER. PROCESS OF STAINING WOODS.

(Applicaticn filed Feb ls, 1902.)

(No Model.)

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UNITED STATES PAT NT OFFICE.

JOSEF PFISTER, OF VIENNA, AUSTRIA-HUNGARY, ASSIGNOR TO JOACHIM VON BRENNER, OF SCI-ILOSS GAIDFORD, AUSTRIA-HUNGARY.

PROCESS OF STAINING'WOODS.

SPECIFICATION forming part of Letters Patent No. 708,069, dated September 2, 1902.

7 Application filed February 13, 1902. .Serial No. 93,955- (No specimens.)

To a, whom it may concern; 1

Be it known that'I, JOSEF PFISTER, a subject of the Emperor of Austria-Hungary, residing at 11 Hotel Kronprinz,Vienna, Austria'- Hungary, have invented certain new and useful Improvements in Staining Woods,of which the following is a specification.

My present invention has relation to an improved process for staining woods, and more especially to an improvement in the wellknown process of impregnating or staining woods by forcing the dyeing liquid within a closed receptacle under pressure I through the article or object under treatment..-

15 The principal object of my invention is toprovide a process by means of which woods can be stained by variously-colored d-yes, so as to show distinct multicolored patterns when finished.

According to a well-known process wood is stained or impregnated by inclosing it in a receptacle and forcing the staining or impregnating liquid under pressure through the front face and the circumferential surface, 2 5 which liquid after having passed through the texture exudes from the rear face not put under pressure. There being no counterpressure' upon the rear face the, wood, is evenly stained throughout. Experience now has demonstrated that'in this process the impregnating or staining liquid in the beginning of its actionpenetrates the wood texture in axial direction and only under continued pressure permeates through the pores in 3 5 lateral direction. The application of this empiricallyfound phenomenon forms the subject of the present invention.

In carrying my invention into practice there is fastened a pattern of leather, caout- 4o chouc, or the like to the front face of the tree-trunk tobe stained. The wood is then treated as above described, forcing the staining liquid through it for a relatively short time only. Upon removing the pattern it 5 will be shown that the dye has acted only in the interspaces of the pattern, and this will be found to be the case throughoutthe wood when cut apart. After having imparted the first pattern to the. wood in a certain color there may successively be applied difierentlycolored dyes by the aid of different patterns,

which in turn expose surfaces covered by the previously-used patterns. The result will be a wood showing throughout its thickness in cross-section differently -colored interlaced 5s figures correspo'ndingto the patterns em.- ployed. v I

In the accompanying drawings is illustrated-an apparatus and patterns to be secured to the front face of the wood to be dyed for carrying my invention into effect, and in which- Figure l is a longitudinal sectional View of an apparatus and the end of a trunk of a tree to be stained or impregnated with 001- ored'liquid located therein. Fig. 2 is a crosssectional view on the line A A of- Fig. 1, illustrating in front elevation the pattern secured to the front face of the trunk of a tree. Figs. 3 and 4 illustrate, respectively, in front and side elevation a counter-pattern to be used in conjunction with the pattern illustrated in Figs. 1 and 2. Fig. 5 illustrates in front elevation another form of pattern in the shape of a cap engaging the end and covering the face of the trunk of a tree. Fig. 6 is a crosssectional view on the line B B of Fig. 5. Fig. 7 illustrates in front elevation a counterpattern held in position on the end of a trunk of a tree by a ring and adapted to be used in connection with the pattern illustrated in Fig. 6, and Fig. 8 is a cross-sectional View on the line C O of Fig. 7.

In the drawings, 1 represents a pattern or shield having preferably sector-like openings 2, formed by cutting out corresponding portions of the pattern 1. The pattern 1 by means of pins, glue, or in any other suitable manner is secured to the face of the trunk of a tree 3 to be dyed, and the end of the trunk 0 so prepared is then placed in a receptacle 6, as shown in Figs. 1 and 2 of the drawings. The receptacle is provided with a door or lid 5, having a suitable opening through which the trunk passes, and between the receptacle 6 and-the lid 5 is arranged a washer 4:, adapted to surround the wood 3 and to prevent the escape of staining liquid 20, placed in the receptacle 6, through the door or lid 5 thereof.

The end of the trunk of the tree by means of mo set-screws 7 is held in proper position within the receptacle 6. The staining or impregnat ing liquid by means of the tube 21 is introduced under pressure into the receptacle 6 and will penetrate the wood of the trunk of the tree its entire length, but only at the portions or openings 2 arranged in the pattern or shield 1, so that this pattern will be reproduced throughout the tree.

After the wood has been stained in the above-described manner the pattern or shield 1 is removed from the face of the end of the trunk of the tree and in its place is secured to said face the counter-pattern, consisting of sector-like portions 9, which by means of links 8 are connected with each other. As shown in Figs. 3 and 4 of the drawings, the counterpattern 9 will cover the exact spaces previously left bare by the pattern 1 of Figs. 1 and 2. The end of the tree is again placed in the receptacle 6 and another coloring or staining liquid is forced through the wood and through the entire length of the trunk of the tree, staining the same in all those portions which were left unstained by the pattern or shield 1. Instead of fastening the pattern 1 by means of pins or glue to the face of the trunk of a tree the same may be cap-shaped and fitted to said face, as shown in Figs. 5 and 6 of the drawings. The corresponding counter pattern or shield 9 of the pattern or shield shown in Figs. 5 and 6 can be secured to the face of the trunk of the tree 3 by a ring 11, provided with arms 10, engaging the pattern 9, as shown in Figs. 7 and 8.

From the foregoing description it will be readily understood that any conceivable pattern or configuration and in any combination of colors maybe obtained by forcing the staining liquids through the wood.

Having thus described the nature and object of my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The process of staining woods under liquid-pressure, which consists in applying successively to one face of the article or wood to be treated the desired patterns and then forcing in succession the dyeing liquid within a closed receptacle under pressure through each pattern to show the decided colored patterns therethrough, when finished, substantially as set forth.

2. The process of staining woods under liquid-pressure, which consists in applying to one face of the wood to be treated a pattern, forcing the dyeing liquid under pressure through the wood to penetrate the texture of the wood in axial direction and continuing the pressure of the forcing liquid through the wood to cause its penetration through the pores of the wood in a lateral direction, substantially as and for the purposes set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOSEF PFISTER.

Witnesses:

HARRY BELMONT, ALVESTO S. HOGUE. 

